rheem
About the organisation
Rheem Manufacturing Company 1100 Abernathy Road, Suite 1700 Atlanta, GA 30328, United States www.rheem.com is a well-established manufacturer specializing in heating, cooling, and water heating products. Founded in 1925, the company has its headquarters in Atlanta, Georgia, and has grown to become a global leader in its industry. Company Overview. Rheem produces a wide range of products, including residential and commercial water heaters, boilers, air conditioning units, and heating, ventilation, and air conditioning (HVAC) equipment. The company is particularly noted for its commitment to energy efficiency, offering numerous ENERGY STAR® certified products. Leaked data: 320 GB (479,856 Files, 76,897 Folders) includes developments: technical documentation, drawings, test reports and other technical information, employee data containing personal information, corporate information, contracts and agreements (including non-disclosure agreements), financial information and metrics, and much more.
What the listing means
rheem appeared on the incransom leak site on 20 April 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 33 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing rheem as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on rheem.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Manufacturing organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/cmhlZW1AaW5jcmFuc29t
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
